What category is the 2025 Gryffin 450?

The 2025 Gryffin 450 has a Category of Classic.

What type of engine does the 2025 Gryffin 450 have?

The 2025 Gryffin 450 has a Engine type of Single cylinder, four-stroke.

How many gears does the 2025 Gryffin 450 have?

The 2025 Gryffin 450 has a Gearbox of 5-speed.

Gryffin 450 - 2025 Specifications and Reviews

Name: 2025 Gryffin 450
Brand: Janus

The 2025 Janus Gryffin 450 is a classic-styled middleweight motorcycle powered by a reliable 445cc SWM single-cylinder engine producing 30 horsepower. Best suited for riders seeking vintage aesthetics with modern fuel injection and dependable performance, it excels as an accessible everyday commuter and weekend cruiser. Its efficient air-oil cooling and dry-sump lubrication deliver consistent reliability for casual riders prioritizing character over raw power.

⇄ Compare 📅 All Years

2026

2025

❮❯

Add/Upload pictures for this motorcycle

General information
Color Options	British Racing Green, custom colours
Category	Classic
Engine and Transmission Specifications
Starting	Electric
Clutch	Wet multiplate
Final Drive	Chain (final drive)
Gearbox	5-speed
Cooling System	Oil & air
Ignition	CDI
Fuel Control	Single Overhead Cams (SOHC)
Induction	Injection
Valves Per Cylinder	4
Compression Ratio	10.1:1
Max Power	30.0 HP (21.9 kW)) @ 7500 RPM
Engine Details	SWM engine
Capacity	445.0 ccm (27.15 cubic inches)

Physical measures and capacities
Fuel Capacity	8.33 litres (2.20 US gallons)
Wheelbase	1346 mm (53.0 inches)
Overall Length	2108 mm (83.0 inches)
Seat Height	813 mm (32.0 inches) If adjustable, lowest setting.
Power/Weight Ratio	0.2004 HP/kg
Dry Weight	149.7 kg (330.0 pounds)
Gryffin 450 dimensions and frame
Seat	Sargent
Wheels	CNC machined aluminum hubs with aluminum alloy rims and stainless steel straight-pull spokes
Rear Brakes	Single disc. Single Piston caliper, Brembo
Brake Disc Diameter	220 mm (8.7 inches)
Front Brakes	Single disc. Two-piston caliper, Brembo
Rear Tyre	4.60-17
Front Tyre	2.75-21
Rear Suspension	Proprietary swing-arm with dual progressive coil-over Ikon shocks
Front Wheel Travel	140 mm (5.5 inches)
Front Suspension	Proprietary leading-link fork with dual progressive coil-over Ikon shocks
Frame	DOM tubular steel double cradle
Speed and acceleration
Top Speed	144.8 km/h (90.0 mph)
Other specs
Related bikes	List related bikes for comparison of specs.
Ask questions	Join the 25 Janus Gryffin 450 discussion group or the general Janus discussion group.
Maintenance	Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com.
Insurance costs	Compare US insurance quotes from the nation's top providers.
Update specs	Report missing specs or required updates.
Comments	US brand.
Warranty	2-year unlimited-mileage warranty
Instruments	Digital
Lubrication system	Dry sump with gerotor pump, cartridge filter, and oil cooler
Engine type	Single cylinder, four-stroke
Model year	2025
Motorcycle name	Janus Gryffin 450